He told the Radio Times: "The format is ten years old and any format that has lasted that long, you have to change the format because the inevitable result is if you don't [the ratings] will go down.

"Every aspect of the show [will be changed] in some particular way. It will look like a slightly different show to one you have seen before.

"My job is to try and make the show better than it was two or three years ago."

The programme's creator also addressed claims that talent shows like The X Factor exploit contestants.

"It happens on every show you make," he explained.

"There is a moment where you feel uncomfortable, but then you look at things with perspective and the truth is, over the years, the show has benefited a lot of people's lives who wouldn't have had an opportunity."

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